SR-71 and SR-72 Engine Cycle Comparison

http://www.aviationweek.com/Portals/aweek/media/hyperengines/hyperengines.html

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Lockheed Martin · Speed is the New Stealth. Meet SR72

http://www.lockheedmartin.com/us/news/features/2013/sr-72.html

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Gamera Team Sets Unofficial 97seconds Record For Human-Powered Helicopter Flight

http://www.aero-news.net/index.cfm?do=main.textpost&id=945c8c79-3236-406d-a96d-d662fa2b533c

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Rotax Extends Warranty Service Terms

http://www.aero-news.net/index.cfm?do=main.textpost&id=8a50b67a-4cb0-46de-a719-4ddfdcd56e16

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